$OpenBSD: patch-ipc_src_Makefile,v 1.1 2014/03/24 21:01:46 landry Exp $
Remove warning not supported by base gcc
--- ipc/src/Makefile.orig	Wed Mar 12 22:11:49 2014
+++ ipc/src/Makefile	Wed Mar 12 22:11:57 2014
@@ -57,7 +57,7 @@ all: install
 
 
 $(objfiles): $(source)
-	$(CC) $(CFLAGS) -Wno-return-type-c-linkage -c -o $(objfiles) $^
+	$(CC) $(CFLAGS) -c -o $(objfiles) $^
 
 $(libname): $(objfiles)
 	$(CC) $(LDFLAGS) -o $(libname) $(objfiles)
